TY  - BOOK
AU  - Helfrich,Harold W.
TI  - The Environmental crisis
SN  - 0300013124 (v. 1)
AV  - TD176.7 
PY  - 1970///; [c1970-71]
CY  - New Haven
PB  - Yale University Press
KW  - Pollution
KW  - Nature
KW  - Natural resources
N1  - "Lectures which comprised a 1968-69 symposium on 'Issues in environmental crises' at the Yale University School of Forestry."; [1] Man's struggle to live with himself.--2. Agenda for survival
ER  -